15-letter words containing h, o, p, s, t
- the pleistocene — the Pleistocene epoch or rock series
- the proprieties — the standards of behaviour considered correct by polite society
- theory of types — a theory advanced by Bertrand Russell to avoid the liar paradox, Russell's paradox, etc, in which a class of expressions or of the entities they represent can all enter into the same syntactic relations
- theriomorphosis — transformation into an animal form, often associated with mythological characters
- thermoperiodism — the effect on an organism of rhythmic fluctuations in temperature.
- thomas à kempis — Thomas à, 1379?–1471, German ecclesiastic and author.
- thought process — thinking, train of thought
- threshold price — the highest price a retailer is allowed to sell a particular good at
- toxic psychosis — a psychosis resulting from the toxic effect of chemicals, drugs, or certain intrinsic metabolic states.
- trainspotterish — obsessed with trivial details, esp of a subject generally considered uninteresting
- turkish cypriot — denoting ethnically Turkish inhabitants of Cyprus
- ultrasonography — a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate, measure, or examine internal body structures or organs.
- unsophisticated — not sophisticated; simple; artless.
- vanishing point — a point of disappearance, cessation, or extinction: His patience had reached the vanishing point.
- washington palm — a palm tree, Washingtonia filifera, of California and Florida, having large fan-shaped leaves and small black fruits
- west hartlepool — a former borough, now part of Hartlepool, in Cleveland County, in NE England, at the mouth of the Tees.
- whip into shape — to bring by vigorous action into the proper or desired condition
- white corpuscle — white blood cell.
- with respect to — as regards
- zoophysiologist — an expert in zoophysiology